Answer
The response variable in the given experimental study is the preference of Coke or Pepsi.
The response variable in the given experimental study is the more preferable drink by the respondent between Coke and Pepsi.
Blinding is introduced in the experiment so that the subjects cannot change themselves according to the treatment and the researcher can get a response without adjustment.
Randomization is needed in the experiment to assign the treatment to the respondent without any bias.
Randomization is used to select which drink should be taken first by the respondent to avoid bias.
The matched-pair design is preferred over the completely randomized design.
The matched-pair design is preferred because, in this design, it is easy to control the respondents’ preference for a particular drink.
Work Step by Step
Explained above.
